Fix tests on Windows in Debug configuration (#4)

Author: petrochenkov

src/libstd/sys_common/backtrace.rs

@@ -106,8 +106,10 @@ fn filter_frames(frames: &[Frame],
     static BAD_PREFIXES_TOP: &'static [&'static str] = &[
         "_ZN3std3sys3imp9backtrace",
         "ZN3std3sys3imp9backtrace",
+        "std::sys::imp::backtrace",
         "_ZN3std10sys_common9backtrace",
         "ZN3std10sys_common9backtrace",
+        "std::sys_common::backtrace",
         "_ZN3std9panicking",
         "ZN3std9panicking",
         "std::panicking",
@@ -116,6 +118,7 @@ fn filter_frames(frames: &[Frame],
         "core::panicking",
         "_ZN4core6result13unwrap_failed",
         "ZN4core6result13unwrap_failed",
+        "core::result::unwrap_failed",
         "rust_begin_unwind",
         "_ZN4drop",
         "mingw_set_invalid_parameter_handler",
@@ -129,13 +132,16 @@ fn filter_frames(frames: &[Frame],
         "core::panicking",
         "_ZN3std2rt10lang_start",
         "ZN3std2rt10lang_start",
+        "std::rt::lang_start",
+        "panic_unwind::__rust_maybe_catch_panic",
         "__rust_maybe_catch_panic",
         "_rust_maybe_catch_panic",
         "__libc_start_main",
         "__rust_try",
         "_start",
         "main",
         "BaseThreadInitThunk",
+        "RtlInitializeExceptionChain",
         "__scrt_common_main_seh",
         "_ZN4drop",
         "mingw_set_invalid_parameter_handler",